Cindi Leive, editor-in-chief of Glamour for 16 years, shocked the magazine world on Thursday be announcing she was stepping down from the Condé Nast title at year end.

The exit of the 50-year-old Leive brings to four the number of long-tenured, high-profile editors of major magazines that have announced their departure in the past seven days.

Just a week ago, on Sept. 7, Condé was rocked when Graydon Carter said he was stepping down as editor of Vanity Fair after 25 years.

On Sept. 11, Robbie Myers, the editor of Elle, surprised staffers at the Hearst title be saying she was leaving after 17 years of leading the fashion monthly.

On day later, on Sept. 12, Nancy Gibbs, a 32-year veteran of Time magazine, including the last four as editor-in-chief, resigned.

“I’m writing to share some bittersweet news: I’ve made the decision to leave Glamour by the end of this year,” Leive wrote in a memo to surprised staffers.

“You all know better than anyone how much I have loved my time here — but after 16 years, I feel the moment is right to pass this baton over the next person ready to run this particular race,” she said in the memo.

In the two Condé departures, no replacements were named. The exits there come as the company is facing looming cuts in the weeks ahead as the publisher wrestles with the decline of print advertising revenue, Women’s Wear Daily reported last week.

The industry speculation is that the anticipated cuts hastened the departure of both Carter and Leive who were reluctant to take the knife to their staffs again.

At Time, Ed Felsenthal, the company’s top digital editor, was named as Gibbs’ replacement on Thursday.

At Hearst, Nina Garcia, the Marie Claire creative director, was named to succeed Myers.

Carter’s departure had long been rumored and it was known that his contract was not going to be extended past the end of 2017. Leive’s departure was more of a surprise.

That mean’s Condé Nast artistic director Anna Wintour must now fill two the top jobs on two titles simultaneously.